JPH075157B2 - Kerosene delivery vehicle - Google Patents

Description

The present invention relates to a kerosene delivery vehicle equipped with an oil supply device for metering and selling kerosene.

[Conventional technology]

In such an oil supply device, a pipe communicating with an oil storage tank is provided in an outer case, a pump connected to a motor and a flow meter are attached to this pipe, an oil supply hose having an oil supply nozzle at the tip is connected to the pipe, and a pump motor is driven. Or a control device for measuring the amount of refueling is provided. The fuel pumped from the oil storage tank is discharged from the nozzle via the refueling hose, and at that time, the refueling amount measured by the flow meter is displayed on the refueling amount display meter attached to the case and the metered sale is performed. .

By the way, since this refueling device is mounted on a vehicle and moves, the battery of the vehicle is used as a power source for the pump motor. In this case, while refueling to drive the pump motor, simultaneously drive the engine of the car,
I try to charge at the same time as power consumption. However, in actuality, refueling consumes more than the amount of charge because the pump motor is rotated at a high speed to do this, and this shortage is compensated for while the vehicle is running.

[Problems to be solved by the invention]

In such a method, when the battery is old or the traveling distance is short, the battery cannot be sufficiently charged during traveling, and the battery voltage may drop abnormally during refueling. In such a case, the pump motor may stop or the control device may malfunction to cause incorrect counting or incorrect display of the oil supply amount, which may cause trouble with the customer.

An object of the present invention is to solve the above-mentioned inconvenience and provide a kerosene delivery vehicle capable of preventing the pump motor of the refueling device from stopping or the control device from malfunctioning even if the battery voltage of the car drops during refueling. To do.

[Means for solving problems]

In order to achieve the above object, the present invention provides an automobile with an oil storage tank, and an oil supply pipe communicating with the oil storage tank is provided with an oil supply pump and a flow meter having a flow pulse transmitter, and an oil supply nozzle is provided at the tip of the oil supply pipe. In a kerosene delivery vehicle equipped with a supply device connected to a refueling hose attached with, further comprising a control device, and each device such as the refueling pump being supplied with electric power from a battery of an automobile, the control device includes:
The voltage measuring means of the battery of the automobile, the over-discharging informing means for outputting a low speed rotation command signal when the voltage measured by the voltage measuring means becomes equal to or less than a certain value, and the refueling pump drive motor receiving the signal from the refueling switch. And a motor control means for controlling a low-speed rotation of the oil supply pump drive motor by receiving a signal from the oil supply switch and a low-speed rotation command signal from the over-discharge notification means. .

[Action]

According to the present invention, the battery voltage of the automobile is measured by the voltage measuring means, and when the battery voltage drops to a certain value or less during refueling, a signal is output from the overdischarge notifying means to notify that the voltage has dropped at the same time. The number of rotations of the motor is reduced to switch to low-speed rotation, power consumption is reduced, and refueling is continued to prevent malfunction of the refueling device.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of a kerosene delivery vehicle of the present invention, and FIG. 2 is a block circuit diagram of the embodiment.
Explaining from the overall configuration of a kerosene delivery vehicle, an oil storage tank 2 made of a metal such as an aluminum alloy is mounted on a loading platform 1a of a truck 1 so that kerosene can be delivered, and an oil supply device connected to the oil storage tank 2 by an oil distribution pipe. 3 is installed.

In the refueling device 3, the hose reel 30 is placed inside the outer case 4.
The one-way clutch of the rotary shaft of this hose reel.
A refueling hose 7 connected to the forward / reverse rotation motor 5 via 31 and having a refueling nozzle 6 attached to the tip thereof is wound around the hose reel so that it can be drawn out, and the root end of the refueling hose 7 is connected to the oil storage tank 2. It is connected to the oil supply pipe 8. Then, an oil supply pump 9 driven by the forward / reverse rotation motor 5 and a flow meter 10 are arranged in the oil supply pipe 8, and a flow rate pulse transmitter 11 is attached to the flow meter 10.

In the figure, 12 is a control device constituted by an IC circuit, 13 is an oil supply amount indicator, 14 is an automobile battery, and a power switch 15, an oil supply switch 16 and a battery are further provided in the outer case 4.
An alarm device 17 is provided to notify when the voltage of 14 becomes a certain value or less.

As shown in the block circuit diagram of FIG. 2, the control device 12 receives the output signals from the power switch 15, refueling switch 16, battery 14 and flow rate pulse transmitter 11, and informs the alarm 17, the motor 5, and the refueling amount indicator. It sends the output signal to 13,
The power supply means 18 connected to the battery 14 receives the output of the power switch 15 and supplies power to the control device 12, and the measurement of the voltage measurement means 19 using a conventionally known voltmeter connected to the battery 14 is performed. The value was introduced into the overdischarge notification means 20.

The over-discharging notification means 20 uses the standard voltage of the battery 14 (for example, 12
If the measured value from the voltage measuring means 19 becomes lower than the value of the storage means 21 that is set and stored with a voltage slightly lower than V) (for example, 10 V) as a reference value, an operation signal is output to the alarm drive means 22 to cause the motor A low speed rotation signal is output to the control means 23. Note that this output is reset by the off signal of the fuel supply switch 16.

The alarm drive means 22 receives a signal from the over-discharge alarm means 20 and operates an alarm which generates light or sound.

The motor control means 23 receives the ON signal from the refueling switch 16 to control the motor 5 to rotate at high speed, and the over-discharge notification means 20
Low speed rotation is controlled by receiving the signal from.

The counting means 24 counts the pulse signals of the flow rate pulse transmitter 11 and displays the amount of oil supply on the oil supply amount display meter 13 via the oil supply amount display meter drive means 25. Then, upon receiving the ON signal of the refueling switch 16, the count value is reset.

Next, the usage and operation will be described with reference to the flowcharts of FIGS. 3 and 4. Kerosene is supplied from the underground tank to the oil storage tank 2 at the gas filling station, the truck 1 is started from the gas filling station, and stopped at the customer's place. . At this time, leave the engine switch of the car in the idling state without turning it off. To refuel, pull out the refueling nozzle 6 and the refueling hose 7 and turn on the power switch 15 (step a in FIG. 3), and the output signal from here enters the power supply means 18,
The means 18 supplies battery power to the control device 12 so that the control device 12 becomes movable.

In this way, when the power switch 15 is turned on, the voltage of the battery 14 is measured by the function of the voltage measuring means 19,
The voltage value is input to the overdischarge notification means 20.

Here, the reference value (for example, 10
V), and when the input voltage value falls below this reference value, it is output to the alarm drive means 22 in FIG. 3 (step B), and the alarm 22 is activated by the operation of the means 22. The light or sound informs that the voltage of the battery 14 is abnormally lowered, and as a result, the motor 5 may be stopped or the refueling amount may be erroneously counted or erroneously displayed.

At the same time, the over-discharge notification means 20 also outputs a signal to the motor control means 23 (step C). This signal output is stopped (step E) when the refueling switch 16 is turned off (step D). The voltage test of the battery is performed until the power switch 15 is turned off (step S).

When the refueling switch 16 is turned on (step in FIG. 4), the ON signal enters the counting means 24 as a reset signal, the previous refueling amount is reset to zero, and the refueling amount indicator 13 is reset to zero (step). . When the ON signal enters the motor control means 23 and the over-discharge notification signal is not input (step step), the motor 5 starts to rotate at high speed by the output from this and the oil supply pump 9 is driven (step step). At this time, the one-way clutch does not rotate the hose reel.

Insert the tip of the refueling nozzle 6 into the refueling port such as a plastic tank,
When the nozzle 6 is opened by operating the lever, kerosene is sucked up from the oil storage tank 2 and discharged from the end of the nozzle 6. At that time, the flow rate is measured by the flow meter 10, and the measured value enters the counting means 24 from the flow rate pulse transmitter 11 as a flow rate signal,
The refueling amount display meter 13 displays the refueling amount.

During refueling, it is constantly checked whether or not the over-discharge notification signal is input. When the signal is input to the motor control means 23 (step step), the motor control means 23 reduces the rotation speed of the motor 5 and switches to low speed rotation. (Step) to reduce the power consumption of the battery 14.

In this way, refueling is continued while the motor 5 is rotating at a low speed, and when the desired amount is refueled, the refueling switch 16 is turned off (step W), the motor 5 and the refueling pump 9 are stopped (step W), and the refueling operation is performed. Complete. Next, when the switch for winding the hose is turned on, the motor 5 reversely rotates, and the hose reel rotates and the refueling hose 7 and the refueling nozzle 6 which are pulled out are stored in the winding case 4.

After the winding, the motor 5 is stopped and the hose reel is stopped when the winding switch is turned off.

Finally, the power switch 15 is turned off and all the operations are completed.

〔The invention's effect〕

As described above, the kerosene delivery vehicle of the present invention can prevent the motor from stopping or the refueling amount from being erroneously measured or erroneously displayed even if the voltage value of the battery, which is the power source, decreases during refueling. It is possible to prevent troubles with customers.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a kerosene delivery vehicle of the present invention, FIG. 2 is a block circuit diagram of the embodiment, FIG.
FIG. 4 is a flowchart showing the operation. DESCRIPTION OF SYMBOLS 1 ... Truck, 1a ... Luggage platform 2 ... Oil storage tank, 3 ... Lubrication device 4 ... Exterior case, 5 ... Forward / reverse rotation motor 6 ... Lubrication nozzle, 7 ... Lubrication hose 8 ... Lubrication piping, 9 ... Lubrication pump 10 ... Flowmeter, 11 ... Flow rate pulse transmitter 12 ... Control device, 13 ... Refueling amount indicator 14 ... Battery, 15 ... Power switch 16 ... Refueling switch, 17 ... Alarm device 18 ... Power supply means, 19 ... Voltage measuring means 20 ... Over discharge notification Means, 21 ... Storage means 22 ... Alarm drive means, 23 ... Motor control means 24 ... Counting means, 25 ... Refueling amount indicator drive means 30 ... Hose reel, 31 ... One-way clutch

Claims (1)

[Claims] 1. An oil storage tank in an automobile, an oil supply pipe communicating with the oil storage tank is provided with an oil supply pump and a flow meter having a flow rate pulse transmitter, and an oil supply hose having an oil supply nozzle attached to the tip of the oil supply pipe. A kerosene delivery vehicle equipped with a refueling device in which each device such as the refueling pump is supplied with electric power from the car battery, and the control device includes a voltage measuring means for the car battery. And an over-discharge notification means for outputting a low speed rotation command signal when the voltage measured by the voltage measuring means becomes a certain value or less, and a high speed rotation control of the oil supply pump drive motor in response to a signal from the oil supply switch, Motor control means for controlling the low speed rotation of the refueling pump drive motor in response to the signal from the switch and the low speed rotation command signal from the overdischarge notification means are provided. Kerosene delivery vehicle that characterized the door.